Malicious PDF — malware analysis report

Static analysis result for SHA-256 a01d87f0a37a320b…

MALICIOUS

PDF

52.4 KB Created: 2020-08-03 02:16:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5be110dd953e027f83c80596ca0705c6 SHA-1: e0f798e2af5321d0e80adace5e506dcd4ee237aa SHA-256: a01d87f0a37a320b78beb04fa1fd6616e3dbdae86eecd8f47013ee26d84ff3db
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a significant number of embedded links, with one heuristic specifically flagging it as a 'PDF SEO Link Farm'. One of these links, 'https://ttraff.ru/pify?keyword=sanborn+air+compressor', is identified as a malicious redirector. The document body appears to be corrupted or heavily obfuscated, but the presence of numerous external links suggests an attempt to manipulate search engine results or redirect users to malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=sanborn+air+compressor In PDF document text
    • http://files.thehumanempathyproject.com/uploads/1/3/1/3/131380485/8868057.pdfIn PDF document text
    • http://files.brianabrahamactor.com/uploads/1/3/2/7/132740865/miwutimelafutopexor.pdfIn PDF document text
    • http://files.iamauthorsonjarhodes.com/uploads/1/3/1/4/131407572/a8b5070c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2513/5776/files/tupaxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/40169505762.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4606/7605/files/16235641286.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7853/2758/files/58894519355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8544/6824/files/bewezeger.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/96617946950.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3205/1873/files/vazugupejit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4707/4464/files/2004_honda_pilot_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3387/8940/files/jomezexisebejatinivebup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6879/8614/files/xenophage_quest_destiny_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4525/6352/files/kipedo.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006722.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6722 11348 bytes
SHA-256: efe3d81ee9b7144c950794a35cb820be5e7071f65fba12d2240f797800e2c3e7
font_01_sfnt_off00008c62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C62 5288 bytes
SHA-256: 1f478afa5c78a19f0b4cc62bda9cf008d374c2e1f6598ab57a42a18ce5c89a93
font_02_sfnt_off00009e42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E42 11600 bytes
SHA-256: fe9acd3ae0939a43d88080a43aff98f4dda814dadc4b88c4190e8e4432681cca

Open this report in the interactive analyzer, or submit your own file for analysis.